8 GB (1 module(s) 8 GB) DDR4, registered, ECC, 2,666 MT/s, PC4-2666, DIMM, 1Rx4 8 GB (1 module(s) 8 GB) DDR4, registered, ECC, 2,666 MT/s, PC4-2666, DIMM, 1Rx8 8 GB (1 module(s) 8 GB) DDR4, registered, ECC, 2,666 MT/s, PC4-2666, DIMM, 2Rx8 16 GB (1 module(s) 16 GB) DDR4, registered, ECC, 2,666 MT/s, PC4-2666, DIMM, 1Rx4 16 GB (1 module(s) 16 GB) DDR4, registered, ECC, 2,666 MT/s, PC4-2666, DIMM, 2Rx4 16 GB (1 module(s) 16 GB) DDR4, registered, ECC, 2,666 MT/s, PC4-2666, DIMM, 2Rx8 32 GB (1 module(s) 32 GB) DDR4, registered, ECC, 2,666 MT/s, PC4-2666, DIMM, 2Rx4 64 GB (1 module(s) 64 GB) DDR4 3DS, registered, ECC, 2,666 MT/s, PC4-2666, DIMM, 4Rx4 64 GB (1 module(s) 64 GB) DDR4, registered, ECC, 2,666 MT/s, PC4-2666, LRDIMM, 4Rx4 128 GB (1 module(s) 128 GB) DDR4 3DS, registered, ECC, 2,666 MT/s, PC4-2666, DIMM, 8Rx4